Identifying relative clause
An identifying relative clause, also known as a defining or restrictive relative clause, is a relative clause that qualifies a noun, and tells us exactly which person or thing is being referred to - in other words, it defines that person or thing. Without them the sentences make little sense or have a rather different meaning. No commas are used.
- He likes people who are interested in sport.
- Students who do homework get the best results.
- A corkscrew is something which/that you use to open a bottle of wine.
- The computer which/that we bought was very expensive.
- The man who/that is coming will install the new programs.
 You can use that
- Do you know anyone who/that plays rugby or cricket?
- Judith works for a company which/that makes computer software.
 You can leave out that/who/which when it is the object
- We went to see the film (that/which) Caroline liked so much.
- This morning I met a friend (that/who) I hadn’t seen for ages.
 See also